[Primary liver cancer coincident with schistosomiasis japonica]

The etiologic relationship of a parasitic liver disease to primary liver cancer has long been debated, and reported is a case that has been encountered of a primary liver cancer coincident with Schistosomiasis japonica. A fifty-nine year-old-man was diagnosed as having a primary liver cancer complicated with liver cirrhosis. A posterior segmentectomy was performed and a microscopic examination revealed a primary liver cancer with multiple ovae of Schistosoma japonicum in the fibrous stroma of the portal spaces. Discussed is the etiologic relationship of Schistosomiasis japonica to the primary liver cancer.